Miscarriage Risk Calculator
Understand statistical miscarriage risks based on maternal age and week of pregnancy
Important Disclaimer
These statistics are population averages based on medical research studies. They represent general risks, not your individual outcome.
This calculator cannot predict whether you will have a miscarriage. Most pregnancies progress normally even with statistical risk factors.
Always consult your healthcare provider for personalized medical advice and care.
Maternal Age & Weeks Pregnant
Factors That Influence Risk
Factors That May Increase Risk
- •Age 35+: Risk gradually increases with age
- •Previous miscarriages: Slightly higher risk
- •Smoking or alcohol use: Increases risk
- •Certain medical conditions: Diabetes, thyroid disorders, PCOS
- •High caffeine intake: More than 200mg daily
Factors That May Decrease Risk
- ✓Taking prenatal vitamins with folic acid
- ✓Maintaining a healthy weight
- ✓Regular prenatal care
- ✓Avoiding alcohol, tobacco, and excessive caffeine
- ✓Managing chronic health conditions
- ✓Reducing stress and getting adequate rest
Understanding Miscarriage Risk
Miscarriage is the spontaneous loss of a pregnancy before the 20th week. The overall risk of miscarriage is often higher than many people realize, but the risk decreases significantly as pregnancy progresses and a heartbeat is detected.
How Risk Changes by Week
The risk of miscarriage is highest in early pregnancy. After a heartbeat is detected around week 6-7, the risk drops significantly. By week 12-13 (end of first trimester), the risk is very low (less than 1-2%). By week 20, the risk is extremely rare.
How Age Affects Risk
Maternal age is one of the most significant factors affecting miscarriage risk. The risk gradually increases with age, particularly after age 35. However, most pregnancies at all ages result in healthy births.
Most Pregnancies Are Healthy
Even with statistical risk factors, the vast majority of pregnancies result in healthy babies. Focus on what you can control: prenatal care, vitamins, healthy lifestyle, and staying informed while avoiding unnecessary anxiety.
If you have concerns about your pregnancy, please reach out to your healthcare provider.
If you are experiencing anxiety about your pregnancy or have concerns, please reach out to your healthcare provider. They can provide personalized guidance and support based on your individual situation.